import appuifw
import anydbm
import e32
import re
import key_codes

print """
wikkit
Copyright 2005, Christopher Schmidt
MIT License, Share and Enjoy
"""
r_endword = re.compile(r'[A-Za-z0-9]+$')
r_startword = re.compile(r'^[A-Za-z0-9]+')

class Application:
    def getword(self, input, pos):
        """From Sean B. Palmer, http://inamidst.com/sbp/"""
        try: eword = r_endword.search(input[:pos]).group(0)
        except AttributeError: eword = '' 
        try: sword = r_startword.match(input[pos:]).group(0)
        except AttributeError: sword = ''
        if not (eword or sword): return None
        return eword + sword
    def upload(self):
        import urllib
        d = {}
        for i in self.db.keys():
            d[i] = self.db[i].replace(u'\u2029', "\n\n")
	s = urllib.urlencode(d)
        uri = appuifw.query(u"URI to POST to?", "text")
	u = urllib.urlopen("%s"%uri, data=s)
	appuifw.note(u"Uploaded data.", "info")
    def open_page(self, page):
        """Change the current page, saving the text and opening a new one."""
        self.db[self.current_page] = appuifw.app.body.get()
        if not self.history:
            self.old_page.append(self.current_page)
        self.history = 0
        self.current_page = page
        if self.current_page in self.db: 
            appuifw.app.body.set(self.db[self.current_page])
        else: 
            appuifw.app.body.set(u"")
        self.db.sync()
        appuifw.app.title=u"%s"%page

    def callback_new(self):
        """Open a new wiki page."""
        new_page = appuifw.query(u"Title?", "text")
        self.open_page(new_page)

    def callback_save(self):
        """Save the current page, and sync."""
        self.db[self.current_page] = appuifw.app.body.get()
        self.db.sync()

    def __init__(self):
        """Open an anydbm file, open the "main" wiki page."""
        self.db = anydbm.open("C:\\wikidb", "c")
        self.current_page = "main"
        self.old_page = []
        self.history = 0
        if not u'main' in self.db: self.db[u'main'] = u"Main Page"
        self.orig_menu = appuifw.app.menu
        appuifw.app.menu = [(u"New", self.callback_new),
                            (u"Open", self.launch_list),
			    (u"Save",self.callback_save), 
			    (u"Upload to Web",self.upload), 
			    (u"Exit", self.callback_exit)]
        self.orig_exit = appuifw.app.exit_key_handler 
        appuifw.app.exit_key_handler=self.callback_exit
        appuifw.app.body = appuifw.Text(self.db[u'main'])
        self.old_title = appuifw.app.title
        appuifw.app.title = u"main"
        appuifw.app.body.bind(key_codes.EKeyDevice3,self.callback_key)
        appuifw.app.body.bind(key_codes.EKeyYes,self.callback_back)
        self.lock = e32.Ao_lock()
        self.lock.wait()
    def callback_back(self):
        if self.old_page: 
            self.history = 1
            self.open_page(self.old_page.pop())
    def callback_key(self):
        i = self.getword(appuifw.app.body.get(), appuifw.app.body.get_pos())
        if i: self.open_page(i)
    def callback_exit(self):
        """Cleanup after ourselves."""
        self.callback_save()
        appuifw.app.exit_key_handler = self.orig_exit
        appuifw.app.title = self.old_title
        self.db.close()
        self.lock.signal()
    def launch_list(self):
        self.text_body = appuifw.app.body
        appuifw.app.body = appuifw.Listbox(self.db.keys(),self.list_switch)
    def list_switch(self):
        i = appuifw.app.body.current()
        appuifw.app.body = self.text_body
        self.open_page(self.db.keys()[i])
A = Application()